Everyone is free for the evening, somebody suggests playing a game and the next half hour disappears into deciding which one. Finding something you all own is only the beginning, because one person wants an adventure while another would quite like a quiet job to do while you catch up.
The best co op games on Steam give those evenings a reason to get started, whether you are solving Portal 2's chambers as a pair or building a home with a group in Valheim. These 10 PC games offer different ways to play together, with player counts and local or online modes beside each recommendation so you can find something that works for the people joining you.
It Takes Two turns the things around a family home into places for Cody and May to explore after they become dolls, which gives Hazelight plenty of room to keep inventing new ways for them to work together. One section might give each of you a different tool, while the next asks you to combine entirely new abilities, so being useful to your partner is woven into the adventure rather than something you occasionally remember to do.
That variety is what makes it such a good choice for a pair who want a proper campaign together, though both players need to be comfortable learning platforming and action controls along the way. A more experienced partner can help explain a section without being able to do everything alone. For online play, the free Friend's Pass lets someone who owns the full game invite a partner without buying a second copy.
Mio writes science fiction and Zoe writes fantasy, which becomes an unusually inconvenient difference when the two find themselves trapped inside their own stories. Split Fiction takes that premise through worlds with very different ideas about what your next obstacle should be, asking you to learn new abilities together as an adventure with dragons gives way to something considerably more futuristic.
The constant change makes it exciting for a pair who enjoy reacting to whatever a game throws at them, but it also means both players need to be ready for action and platforming rather than expecting a quiet puzzle evening. Once you find that rhythm together, learning the next trick becomes part of the fun. Its Friend's Pass allows one full game owner to invite an online partner for free, with crossplay available between supported platforms.
Portal 2's separate co op campaign gives both players portal guns and a series of chambers where understanding your partner's plan matters as much as having one yourself. An idea that seems impossible alone can become obvious when you start thinking about what the other player can do from somewhere else.
There is no need to compete for the cleverest answer, and talking an idea through can be as satisfying as finally making it work. Choose it when you want an adventure built around figuring things out together, with room for both of you to contribute.
Sharing a farm in Stardew Valley gives you somewhere to meet without needing to spend every moment doing the same thing. One person can tend crops while another fishes or explores the mines, with everyone's work becoming part of a place you are making together.
The clock still moves while you organise yourselves, so agree how relaxed you want the farm to be before turning every day into a race. On PC, online play supports up to eight people and local split screen up to four, leaving room for a pair or a larger group.
Overcooked! 2 makes preparing a simple meal surprisingly complicated once the ingredients, cooking stations and people carrying dirty plates are all in different places. You divide up the jobs and start feeling organised, then the kitchen shifts around you and the plan has to change while another order is already waiting to go out.
The controls are straightforward enough to explain quickly, but meeting the kitchen's demands can become frantic, which makes it a better choice for people who enjoy a little shared chaos than anyone hoping to unwind quietly. Getting a routine working is satisfying precisely because everyone has a hand in it, whether they are cooking or keeping the washing up under control. Bring a group happy to laugh at a messy attempt and try a more sensible division of labour next time.
The caves in Deep Rock Galactic are full of minerals your employers want and creatures that would prefer you left them alone, which gives a crew plenty to deal with before the job is done. Each dwarf brings different equipment, so lighting a cavern, making a route through it and keeping everyone alive can become parts of the same conversation about how to get home.
Those roles make working together feel practical, especially when somebody's traversal tool solves a problem another player was struggling with. You will still need to be comfortable with a first person shooter, but the adjustable difficulty gives a group room to learn before taking on tougher expeditions. Start with a crew willing to help each other navigate as well as shoot, and even an ordinary mining job can become a small adventure you want to repeat.
Valheim gives your group a Viking world where building a decent home can be as compelling as setting out to fight the next boss. Somebody starts improving the hall while another heads out for materials, and before long the shelter you put together for practical reasons has become a place everyone has contributed something to.
Exploration and combat eventually pull you into more dangerous regions, so it helps to enjoy preparing for an expedition as much as the expedition itself. Gathering supplies and recovering from a bad trip can take patience, particularly if you hoped to make dramatic progress every time you logged in. Once your group has somewhere to call home, though, spending one evening improving it and another seeing what is beyond the next stretch of sea gives you a good reason to keep coming back.
Your ship in Lovers in a Dangerous Spacetime has more stations than any one person can sensibly operate, which turns moving around inside it into as much of a challenge as avoiding what is outside. Someone handles the engines while another takes a weapon, then an incoming threat persuades everyone that the shield might deserve a little more attention.
Because you are all aboard the same vessel, a helpful move is immediately visible to the rest of the crew, and recovering from a muddled plan means working together rather than waiting for one player to finish a section. It is designed for local play, with Steam Remote Play Together offering a streamed way to share it online instead of a native online mode. Simple individual controls leave everyone able to help, even when agreeing on where the ship should go proves considerably harder.
We Were Here Together sends two Antarctic explorers towards Castle Rock, where being separated makes describing what you can see an essential part of solving the puzzles. Your partner may have information you need without any way to see your surroundings, so finding useful words for a symbol or mechanism can become the thing that finally lets both of you make progress.
That makes it a lovely choice for a pair who enjoy comparing ideas, especially when you are happy to spend a few minutes correcting what the other person thought you meant. It requires online play and a working microphone for each player, so sort those out before settling in. The pleasure is in making sense of the situation together; looking up an answer too early can remove the best conversation you were about to have.
PlateUp! lets you design the restaurant that you will shortly have to survive working in, which makes choosing where to put a counter more consequential than it first appears. Cooking and serving customers exposes the weaknesses in your arrangement, then closing time gives you a chance to change the layout and buy equipment before the next shift tests your improvements.
The planning is a big part of the appeal, particularly when your group starts finding ways to automate work that was causing trouble earlier. Service itself can be hectic and a failed run means starting again, so come prepared to treat a restaurant that goes wrong as useful experience. If you enjoy discussing why a plan failed and immediately wanting to build a better one, there is plenty here to keep a regular group occupied.
Which co op game should you start together?
For two players who want a full adventure, It Takes Two and Split Fiction give you plenty to discover together, while Portal 2 and We Were Here Together suit an evening spent talking through puzzles. If somebody is less confident with action controls, consider giving Stardew Valley a gentle start rather than assuming a colourful platformer will be easy. A larger group can find clear roles in Deep Rock Galactic, or make Valheim an ongoing place to meet.
Do you both need to own the game?
For ordinary online play on separate PCs, plan on each person having their own copy unless the game explicitly offers another arrangement. It Takes Two and Split Fiction have free Friend's Pass downloads for a partner invited by a full game owner, while local play uses one copy on the shared PC.Steam Remote Play Together streams a supported local game from the owner's computer, so that is another option where the connection and controls work for your group.
Steam Families sharing has its own copy rules and does not let two people play the same single shared copy at once. Our guide to finding games in your Steam family library explains how to check what is available before you make plans. Compare your collections first and you may find something you can start together without another shopping trip.